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Exploiting molecular genomics in precision radiation oncology: a marriage of biological and physical precision
Janice S H Tan1, Xiaotian Lin2, Kevin L M Chua1
1Division of Radiation Oncology, National Cancer Centre, Singapore, Singapore.
Abstract:
Achieving local tumour control is paramount for cure in head and neck and prostate cancers. With the transition to precision radiotherapy (RT) techniques, survival rates have improved in the majority of these cancers, but a substantial proportion of 30-40% still relapse following primary treatment. Recent large-scale molecular profiling studies have revealed unique biological events that could explain for tumour aggression and resistance to therapies, redefining the molecular taxonomy of head and neck and prostate cancers. Here, we reviewed the key findings from these studies, highlighting those relevant for clinical stratification. We also proposed novel combinatorial clinicomolecular models to identify subsets of patients with aggressive localised tumours and limited metastases, and to inform on the optimal management of these patients using molecular targeted agents, immunotherapy, and RT.
Insights
Local tumor control is key for head and neck and prostate cancer cures. Molecular profiling reveals new targets for precision radiotherapy (RT) and combinatorial treatments to improve outcomes for patients with aggressive tumors.
Area of Science:
- Oncology
- Radiation Oncology
- Molecular Biology
Background:
- Local tumor control is crucial for curing head and neck and prostate cancers.
- Despite advances in precision radiotherapy (RT), 30-40% of patients experience treatment relapse.
- Molecular profiling has uncovered distinct biological drivers of tumor aggression and therapy resistance.
Purpose of the Study:
- To review key molecular profiling findings relevant for clinical stratification in head and neck and prostate cancers.
- To propose novel clinicomolecular models for identifying aggressive tumor subsets.
- To guide optimal management strategies integrating targeted agents, immunotherapy, and RT.
Main Methods:
- Literature review of large-scale molecular profiling studies in head and neck and prostate cancers.
- Analysis of findings related to tumor aggression and therapy resistance.
- Development of combinatorial clinicomolecular models.
Main Results:
- Molecular profiling has redefined the classification of head and neck and prostate cancers.
- Specific molecular events correlate with tumor aggression and resistance to conventional therapies.
- Identified potential for improved patient stratification and personalized treatment approaches.
Conclusions:
- Molecular insights are essential for improving treatment outcomes in head and neck and prostate cancers.
- Combinatorial clinicomolecular models can guide the use of targeted agents, immunotherapy, and RT.
- Personalized treatment strategies hold promise for overcoming therapeutic resistance and improving cure rates.
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